Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2016-09-28 — OK
Operator
Magellan Pipeline Company, Lp
Cause
Material Failure Of Pipe Or Weld
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$100
Incident datetime
2016-09-28 14:30
Report number
Location
OK
Narrative
While draining the pipeline through the pig launcher drain, local operations noticed a stain appear in the soil a few feet away. Product draining was immediately stopped and the line was isolated to begin investigation. During excavation of impacted soils, a 1.5 inch drain line was discovered that was neither exposed nor touched during the recent tie-in project and was also not identified on terminal drawings. It appeared this line was still tied into the terminal network of drain lines that eventually tied into the sump. Further investigation indicated that the pipe/drain line was left uncapped and not isolated from the active sump lines. Based on the elevation of the drain line on the property, and the typical flow through the drain lines, this un-capped drain line had not been discovered previously. It is believed that a previous owner-operator from whom magellan acquired the system in 2013 disconnected this segment from other drain lines, leaving the end unplugged. Operations capped this pipe then applied nitrogen, allowing them to confirm the leak source was mitigated. Part e, questions 1 and 2 are estimates based on the fact that the piping is all threaded and likely not tested to a pressure more than 100 psig when originally installed since it is an atmospheric drain system. The pressure at the release source is estimated to be 0 psig since the location was un-capped. Approximately 0.54_ cubic yards of impacted soil was remediated.
Detailed record list
Report Received Date
2016-10-26 00:00:00
Iyear
2016
Report Number
20160345
Supplemental Number
21791
Report Type
Original Final
Operator Id
22610
Name
Magellan Pipeline Company, Lp
Operator Street Address
One Williams Center, Md 28
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74172
Local Datetime
2016-09-28 14:30:00
Location Latitude
41.10621
Location Longitude
-104.83589
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Gasoline (Non-Ethanol)
Unintentional Release Bbls
0.2
Recovered Bbls
0.2
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2016-09-28 14:30:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2016-09-28 14:30:00
Restart Datetime
2016-09-28 17:30:00
On Site Datetime
2016-09-28 14:30:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Cheyenne Terminal
Segment Name
Terminal No. 419
Onshore State Abbreviation
Wy
Onshore Postal Code
82007
Onshore City Name
Cheyenne
Onshore County Name
Laramie
Designated Location
Milepost/valve Station
Designated Name
177.2
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
36
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
1.5
Pipe Wall Thickness
Unknown
Pipe Smys
Unknown
Pipe Specification
Unknown
Pipe Seam Type
Other
Pipe Seam Details
Unknown
Pipe Manufacturer
Unknown
Pipe Coating Type
None
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Line In The Facility Sump Drain System Was Disconnected By Previous Owner/operator, Leaving Line Buried And Open Ended
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
50
Est Cost Prop Damage
100
Est Cost Emergency
770
Est Cost Environmental
0
Est Cost Other
0
Prpty
920
Accident Psig
0
Mop Psig
100
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
Scada and cpm monitoring are active on the pipeline and some of the facility, however, the release was in a location such that operations control would not be aware of or receive any alarming of this event. As such, the controller did not cause or contribute to this event.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Field Exam Ind
Yes
Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Other Factor
Yes
Other Factor Details
Part Of Terminal Drain Piping Was Left Open-Ended & Buried By Previous Operator
Pwf Additional Other Ind
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
K****** L* L*******
Preparer Title
Sr. Compliance Coordinator
Preparer Email
K***********@m*********.com
Preparer Telephone
918-574-7315
Preparer Fax
918-574-7377
Prepared Date
2016-10-26 00:00:00
Authorizer Name
K****** L* L*******
Authorizer Telephone
918-574-7315
Authorizer Title
Sr. Compliance Coordinator
Authorizer Email
K***********@m*********.com
Narrative
While draining the pipeline through the pig launcher drain, local operations noticed a stain appear in the soil a few feet away. Product draining was immediately stopped and the line was isolated to begin investigation. During excavation of impacted soils, a 1.5 inch drain line was discovered that was neither exposed nor touched during the recent tie-in project and was also not identified on terminal drawings. It appeared this line was still tied into the terminal network of drain lines that eventually tied into the sump. Further investigation indicated that the pipe/drain line was left uncapped and not isolated from the active sump lines. Based on the elevation of the drain line on the property, and the typical flow through the drain lines, this un-capped drain line had not been discovered previously. It is believed that a previous owner-operator from whom magellan acquired the system in 2013 disconnected this segment from other drain lines, leaving the end unplugged. Operations capped this pipe then applied nitrogen, allowing them to confirm the leak source was mitigated. Part e, questions 1 and 2 are estimates based on the fact that the piping is all threaded and likely not tested to a pressure more than 100 psig when originally installed since it is an atmospheric drain system. The pressure at the release source is estimated to be 0 psig since the location was un-capped. Approximately 0.54_ cubic yards of impacted soil was remediated.
| Report Received Date | 2016-10-26 00:00:00 |
|---|---|
| Iyear | 2016 |
| Report Number | 20160345 |
| Supplemental Number | 21791 |
| Report Type | Original Final |
| Operator Id | 22610 PHMSA Enforcement |
| Name | Magellan Pipeline Company, Lp |
| Operator Street Address | One Williams Center, Md 28 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74172 |
| Local Datetime | 2016-09-28 14:30:00 |
| Location Latitude | 41.10621 Google Maps OpenStreetMap |
| Location Longitude | -104.83589 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Gasoline (Non-Ethanol) |
| Unintentional Release Bbls | 0.2 |
| Recovered Bbls | 0.2 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2016-09-28 14:30:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2016-09-28 14:30:00 |
| Restart Datetime | 2016-09-28 17:30:00 |
| On Site Datetime | 2016-09-28 14:30:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Cheyenne Terminal |
| Segment Name | Terminal No. 419 |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 82007 |
| Onshore City Name | Cheyenne |
| Onshore County Name | Laramie |
| Designated Location | Milepost/valve Station |
| Designated Name | 177.2 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 36 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 1.5 |
| Pipe Wall Thickness | Unknown |
| Pipe Smys | Unknown |
| Pipe Specification | Unknown |
| Pipe Seam Type | Other |
| Pipe Seam Details | Unknown |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | None |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Line In The Facility Sump Drain System Was Disconnected By Previous Owner/operator, Leaving Line Buried And Open Ended |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 50 |
| Est Cost Prop Damage | 100 |
| Est Cost Emergency | 770 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 920 |
| Accident Psig | 0 |
| Mop Psig | 100 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | Scada and cpm monitoring are active on the pipeline and some of the facility, however, the release was in a location such that operations control would not be aware of or receive any alarming of this event. As such, the controller did not cause or contribute to this event. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Field Exam Ind | Yes |
| Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Other Factor | Yes |
| Other Factor Details | Part Of Terminal Drain Piping Was Left Open-Ended & Buried By Previous Operator |
| Pwf Additional Other Ind | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | K****** L* L******* |
| Preparer Title | Sr. Compliance Coordinator |
| Preparer Email | K***********@m*********.com |
| Preparer Telephone | 918-574-7315 |
| Preparer Fax | 918-574-7377 |
| Prepared Date | 2016-10-26 00:00:00 |
| Authorizer Name | K****** L* L******* |
| Authorizer Telephone | 918-574-7315 |
| Authorizer Title | Sr. Compliance Coordinator |
| Authorizer Email | K***********@m*********.com |
| Narrative | While draining the pipeline through the pig launcher drain, local operations noticed a stain appear in the soil a few feet away. Product draining was immediately stopped and the line was isolated to begin investigation. During excavation of impacted soils, a 1.5 inch drain line was discovered that was neither exposed nor touched during the recent tie-in project and was also not identified on terminal drawings. It appeared this line was still tied into the terminal network of drain lines that eventually tied into the sump. Further investigation indicated that the pipe/drain line was left uncapped and not isolated from the active sump lines. Based on the elevation of the drain line on the property, and the typical flow through the drain lines, this un-capped drain line had not been discovered previously. It is believed that a previous owner-operator from whom magellan acquired the system in 2013 disconnected this segment from other drain lines, leaving the end unplugged. Operations capped this pipe then applied nitrogen, allowing them to confirm the leak source was mitigated. Part e, questions 1 and 2 are estimates based on the fact that the piping is all threaded and likely not tested to a pressure more than 100 psig when originally installed since it is an atmospheric drain system. The pressure at the release source is estimated to be 0 psig since the location was un-capped. Approximately 0.54_ cubic yards of impacted soil was remediated. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA